People were seen running and screaming in the wake of the blast that killed 22

Political leaders from all parties announced they would halt their General Election campaigning as a mark of respect for those who lost their lives, with the PM calling an emergency Cobra meeting this morning.

A statement from Greater Manchester Police today said: “We have been treating this as a terrorist incident and we believe that while the attack last night was conducted by one man.

“The priority is to establish whether he was acting alone or as part of a network.

“The attacker, I can confirm, died at the arena.

“We believe the attacker was carrying an improvised explosive device, which he detonated, causing this atrocity.”